CN116591296A - Steel corridor and steel corridor installation method - Google Patents

Abstract

The invention belongs to the technical field of building construction, and discloses a steel corridor and a steel corridor installation method. The steel corridor comprises a cross beam, a truss layer and a rotary upright post; the multi-layer cross beams are arranged in a stacked mode along the height direction of the steel corridor, the truss layer is arranged on the cross beam on the uppermost layer and is used for being connected with the lifting mechanism, the rotating stand column is arranged on the cross beam on the upper layer in a rotating mode, and the rotating stand column can rotate from a stacked position to an assembling position; in the stacking position, the length direction of the rotating upright post is parallel to the length direction of the cross beam; the truss layer can drive the cross beam on the upper layer to ascend so that the rotating upright column rotates to an assembling position under the action of gravity; at the position of assembling, the length direction of the rotating upright post forms an included angle with the length direction of the cross beam, and the rotating upright post can be fixedly connected with the cross beam at the upper layer and the lower layer. This steel vestibule's rotation stand can rotate to the position of assembling, and the personnel of being convenient for installs from the top down, has reduced the installation height, has improved efficiency of construction and security.

Description

Steel corridor and steel corridor installation method

technical field

The invention relates to the technical field of building construction, in particular to a steel corridor and a method for installing the steel corridor.

Background technique

With the continuous construction and development of cities, people have higher and higher requirements for the design of building functions and appearance. As a structure outside the building, the steel corridor can expand the space and improve the utilization rate of the space, and is increasingly used in buildings. When installing some long-span steel corridors, the overall lifting installation method is usually used to install the steel corridors, that is, after the overall assembly of the steel corridors is completed on the tire frame on the ground, the assembled steel corridors are lifted The construction method mainly includes the overall assembly of the steel corridor, the overall lifting of the steel corridor, and the connection after the lifting is in place.

Existing installation methods for steel corridors, such as the overall lifting construction method and device for multi-layer steel structure corridors provided in the patent application number CN 201610921790.6, when installing the lower corridor structure, connect the top steel structure The corridor is lifted to the floor height of the next floor, and then the lower corridor structure is locked and installed, so as to realize the retrograde installation of the steel corridor structure on each floor from top to bottom, with high installation efficiency and good safety; however, the steel corridor structure The overall lifting construction method has the following problems: When assembling the lower steel corridor structure, the connecting beams between the upper and lower floors need to be hoisted one by one under the upper steel corridor, which is cumbersome and reduces construction efficiency. Stability increases the difficulty of construction.

Contents of the invention

The object of the present invention is to provide a steel corridor and a steel corridor installation method, which can reduce construction difficulty and construction cost, and improve construction safety at the same time.

For reaching this purpose, the present invention adopts following technical scheme:

Steel corridors, including:

A crossbeam, the crossbeam has multiple layers, and the multi-layer crossbeams are stacked along the height direction of the steel corridor;

A truss layer, the truss layer is arranged on the uppermost beam, and the truss layer is used to connect with the lifting mechanism;

A rotating column, the rotating column is arranged between the two adjacent beams, the rotating column has a first end and a second end, and the first end is rotatably arranged on the upper beam , the rotating column can rotate between the stacked position and the assembled position on the beam; when the rotating column is rotated to the stacked position, the length direction of the rotating column and the length direction of the beam Parallel, the rotating column is pressed against the beam of the lower layer along the length direction, and the beam of the upper layer is pressed against the rotating column along the length direction of the rotating column; the truss layer can drive all the beams of the upper layer The beam rises so that the rotating column rotates to the assembled position under the action of gravity; when the rotating column rotates to the assembled position, the length direction of the rotating column and the length direction of the beam form a The included angle is that the first end can be fixedly connected to the beam on the upper floor, and the second end can be fixedly connected to the beam on the lower floor.

Preferably, a hinged support is provided at the bottom of the beam, and the first end is hingedly connected to the hinged support through a pin.

Preferably, threads are provided on the pin shaft, a stop plate is provided at one end of the pin shaft, and the other end of the pin shaft protruding from the hinged support is threadedly engaged with a nut.

The steel corridor installation method, using the above-mentioned steel corridor, includes the following steps:

S1. Lay multiple layers of the crossbeams along the height direction of the steel corridor, arrange the rotating columns between the two adjacent layers of the crossbeams, and place the first ends of the rotating columns The upper part is rotatably connected with the beam on the upper floor, so that the rotating column is located at the stacking position;

S2. Fixing the truss layer to the uppermost beam and connecting it to the lifting mechanism;

S3. Drive the truss layer up through the lifting mechanism, so that the beam on the upper floor is away from the beam on the lower floor until the rotating column on the beam on the upper floor is rotated to the installation position;

S4, fixedly connecting the rotating column with the beam;

S5. Steps S3 and S4 are repeated until the rotating uprights on each floor are fixedly connected to the beams.

Preferably, in step S4, the fixed connection between the rotating column and the beam includes:

Fixing the first end of the rotating upright to the crossbeam on the upper floor;

The second end of the rotating upright is fixedly connected to the crossbeam on the lower floor.

Preferably, the second end of the rotating upright is welded to the lower beam.

Preferably, after the rotating column of each floor is fixedly connected to the crossbeam, it further includes:

The lifting mechanism drives the steel corridor to be lifted to the connecting position, and connects the steel corridor to the buildings on both sides.

Preferably, after connecting the steel corridor with the buildings on both sides, it also includes:

Remove the lifting mechanism.

Preferably, in step S3, the lifting mechanism drives the truss layer up to a height not exceeding the length of the rotating column.

Preferably, in step S1, stacking the multi-layer beams along the height direction of the steel corridor includes:

placing the lowermost beam on the tire frame;

The rest of the beams are stacked on the bottom beam along the height direction of the steel corridor.

The beneficial effects of the present invention are:

In the steel corridor provided by the present invention, a rotating column is arranged between adjacent two-layer beams. When the rotating column is rotated to the stacking position, the multi-layer beams are stacked together in order from bottom to top, and the length of the rotating column The direction is parallel to the length direction of the beam, that is, the rotating column is sandwiched between the two adjacent beams in a horizontal state, which reduces the assembly height in the early stage, and the beams of each layer can be assembled without using scaffolding or ladder frames. The construction cost is reduced; when the rotating column is rotated to the assembled position, the rotating column is in a vertical or inclined state with an angle with the beam, which is convenient for construction personnel to fix the two ends of the rotating column to the beams on the upper and lower floors respectively, so that there is no need to install The rotating columns are hoisted one by one from the ground to the working height, and since the first end of the rotating column has been rotationally connected with the upper beam, the stability of the connection between the rotating column and the beam is greatly improved compared with the temporary lifting of the rotating column on site , reducing the difficulty of construction and improving safety. The truss layer on the uppermost beam is connected to the lifting mechanism, and the lifting mechanism drives the beam to rise through the truss layer. Since the first end of the rotating column is rotated and arranged on the beam, the rotating column can rotate under the action of gravity when the upper beam rises To the assembly position, it is convenient for construction personnel to assemble, no need to set up additional driving equipment, and construction personnel do not need to change the working height, the operation is convenient and the installation speed is fast.

Using this steel corridor installation method, the lifting mechanism drives the beam to rise through the truss layer, which can make the rotating column on the beam rotate to the assembly position under the action of gravity, so that the assembly can be performed from top to bottom, reducing the Construction height and construction cost; at the same time, since the rotating column has been rotated and set on the beam before installation, there is no need to temporarily hoist the rotating column for suspended connection during subsequent assembly, which greatly improves the stability of the connection between the rotating column and the beam and reduces the difficulty of construction , Improve safety; in addition, the rotating column can automatically rotate to the assembly position under the action of gravity, without additional driving equipment, saving manpower and material resources.

Description of drawings

Fig. 1 is a schematic structural view of a rotating column provided in a specific embodiment of the present invention when it is in a stacked position;

Fig. 2 is a schematic diagram of the assembly process of the steel corridor provided by the specific embodiment of the present invention;

Fig. 3 is a schematic structural view of the rotating column provided by the specific embodiment of the present invention when it is in the assembled position.

In the picture:

100-lifting mechanism; 200-tire frame; 300-connector;

1 - Beam;

2-truss layer;

3-Turn the upright.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "right", "left" and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operations. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

As shown in Figure 1, the present invention provides a steel corridor, which includes a beam 1, a truss layer 2 and a rotating column 3, the beam 1 has multiple layers, and the multi-layer beam 1 is stacked along the height direction of the steel corridor Set, the truss layer 2 is arranged on the uppermost beam 1, the truss layer 2 is used to connect with the lifting mechanism 100, and a rotating column 3 is arranged between adjacent two layers of beams 1, and the rotating column 3 has a first end and a second Two ends, the first end is rotated and arranged on the beam 1 on the upper floor, and the rotating column 3 can rotate between the stacked position and the assembled position on the beam 1; when the rotating column 3 is rotated to the stacked position, the rotation The length direction of the column 3 is parallel to the length direction of the beam 1, the rotating column 3 is pressed against the lower beam 1 along the length direction, and the upper beam 1 is pressed against the rotating column 3 along the length direction of the rotating column 3; the truss layer 2 The crossbeam 1 on the upper floor can be driven to rise so that the rotating column 3 rotates to the assembly position under the action of gravity; The end portion can be fixedly connected with the beam 1 of the upper layer, and the second end portion can be fixedly connected with the beam 1 of the lower layer. In this embodiment, each steel corridor is composed of upper and lower beams 1, rotating columns 3 connecting the upper and lower beams 1, and the topmost truss layer 2. The beam 1 on the bottom floor of the steel corridor on each floor passes through, and the beam 1 on the top floor of the steel corridor on this floor also serves as the bottom floor of the steel corridor on the upper floor; the rotating column 3 connects the beams 1 on the upper and lower adjacent floors to strengthen the overall structure of the steel corridor Stability and connection strength; in other embodiments, the truss layer 2 can also be replaced by a beam 1 or other top lifting frame, as long as it can be connected to the lower structure of the steel corridor and can be driven by the lifting mechanism 100 The function of raising the lower structure is sufficient, and the structural form of the truss layer 2 is not limited here.

Specifically, before the installation of the steel corridor, the construction personnel placed the multi-layer beams 1 on the tire frame 200 on the ground according to the order of placement from bottom to top, wherein a rotation mechanism is provided between adjacent two-layer beams 1 . Column 3; at this time, the rotating column 3 is in the stacked position, and the length direction of the rotating column 3 is parallel to the length direction of the beam 1, that is, the rotating column 3 is sandwiched in the middle of the adjacent two-layer beam 1 in a horizontal state, which reduces the previous stage. Assembling height, each layer of beams 1 can be assembled without using equipment such as scaffolding or ladder frames, thereby reducing construction costs. Afterwards, the construction workers start the lifting mechanism 100, and the lifting mechanism 100 drives the beam 1 to rise through the truss layer 2. Since the first end of the rotating column 3 is rotated and arranged on the beam 1, when the upper beam 1 rises, the rotating column 3 is under the action of gravity. It can be rotated to the assembly position, which is convenient for construction personnel to assemble, without additional driving equipment, simple structure and convenient operation; The straight or inclined state is convenient for construction personnel to fix the two ends of the rotating column 3 with the beams 1 on the upper and lower floors respectively, so that there is no need to lift the rotating column 3 from the ground to the working height one by one, and because the first end of the rotating column 3 has been It is rotatably connected with the beam 1 on the upper floor, so compared with hoisting the moving column 3, the stability of the connection between the rotating column 3 and the beam 1 is greatly improved, construction difficulty is reduced, and safety is improved; in this embodiment, the rotating The column 3 can be connected vertically or obliquely to the beam 1, as long as the connection between the rotating column 3 and the beam 1 can be ensured to be stable, there is no limitation here.

When the lifting mechanism 100 drives the beam 1 to rise through the truss layer 2, when the rotating column 3 rotates to the assembly position, the construction personnel shuts down the lifting mechanism 100 at this time, and the rotating column 3 of this floor and the beam 1 on the upper and lower floors After the fixed connection, continue to start the lifting mechanism 100, so that the rotating column 3 on the lower floor can be raised to the height where the construction personnel are convenient for the construction personnel to continue to fix the rotating column 3, and the operation is repeated, thereby completing the overall assembly of the steel corridor.

Further, the bottom of the beam 1 is provided with a hinged support, and the first end is hingedly connected to the hinged support through a pin. Specifically, a through hole is opened on the first end, two ear plates are provided on the hinged support, and a receiving channel capable of accommodating the first end is opened between the two ear plates, and both ear plates are provided with There are pin holes; the first end is inserted into the accommodation channel between the two ear plates and the through hole is aligned with the pin holes on both ear plates, and then the pin shaft is used to pass through the pin holes of one ear plate, the first end The through hole of the upper part and the pin hole of the ear plate on the other side, so that the rotating column 3 is rotatably connected to the hinged support.

Specifically, the pin shaft is provided with threads, one end of the pin shaft is provided with a stop plate, and the other end of the pin shaft protruding from the hinged support is threadedly engaged with the nut. In this embodiment, after the rotating column 3 is rotated to the assembled position, construction personnel need to fix the first end of the rotating column 3 with the upper beam 1, and a detachable locking device can be used to fix the first end It is fixedly connected with the hinge support, and the first end can also be directly welded and fixed with the hinge support; compared with the welding connection, the detachable locking device is used to facilitate the adjustment of the installation angle and position of the rotating column 3, and it is also convenient In the later stage, the rotating column 3 is disassembled and replaced. Specifically, the locking device includes a pin with a stop plate and a nut, and the pin is provided with threads. When the rotating column 3 is rotated to the assembled position, the construction personnel will tighten the nut on the pin, and through the connection between the nut and the stop plate Locking, the ear plates on both sides of the first end will deform and lean against the rotating column 3, thereby fixing the rotating column 3 and avoiding further rotation; The fixing and unlocking of the upright column 3 and the upper beam 1 can be realized by turning the nut. The structure is simple and the operation is convenient, which can not only reduce the failure rate of the locking device, but also reduce the manufacturing cost of the steel corridor.

As shown in Figure 2, this embodiment also provides a method for installing a steel corridor, using the above-mentioned steel corridor, including the following steps:

S1. Lay the multi-layer beams 1 along the height direction of the steel corridor, arrange the rotating column 3 between the two adjacent beams 1, and rotate the first end of the rotating column 3 to the upper beam 1 , so that the rotating column 3 is located in the stacking position; specifically, the construction personnel place the multi-layer beams 1 on the tire frame 200 on the ground according to the order of placement from bottom to top, wherein a rotating Column 3; at this time, the rotating column 3 is in the stacked position, and the length direction of the rotating column 3 is parallel to the length direction of the beam 1, that is, the rotating column 3 is sandwiched in the middle of the adjacent two-layer beam 1 in a horizontal state, which reduces the previous stage. Assembling height, each layer of beams 1 can be assembled without using equipment such as scaffolding or ladder frames, thereby reducing construction costs.

S2. The truss layer 2 is fixedly connected to the uppermost beam 1, and connected to the lifting mechanism 100; specifically, the truss layer 2 is welded by multiple sets of triangular steel structures, with high structural strength and strong bearing capacity. The truss layer 2 It is fixedly connected above the uppermost beam 1 , and the truss layer 2 is provided with a lifting hook, so as to facilitate the lifting of the lifting mechanism 100 .

S3. Drive the truss layer 2 to rise through the lifting mechanism 100, so that the upper beam 1 is away from the lower beam 1 until the rotating column 3 on the upper beam 1 rotates to the assembly position; for easy identification and understanding, in this embodiment, according to For the height from top to bottom, the multi-layer crossbeams 1 are respectively named as the first floor crossbeam, the second floor crossbeam, the third floor crossbeam... and also the rotating column 3 connected with each floor beam 1 is named the first floor rotating column , the second layer of rotating columns, the third layer of rotating columns... Specifically, the construction personnel start the lifting mechanism 100, and the lifting mechanism 100 drives the first layer of beams to rise through the truss layer 2. Since the beams 1 and the rotating columns 3 are rotationally connected, the second layer The first layer of rotating columns under the first layer of beams will slowly stand upright under the action of gravity and lifting force until they are rotated to the assembled position.

S4. Fixedly connect the rotating column 3 to the crossbeam 1; specifically, when the first layer of rotating column is rotated to the assembly position, the construction personnel shut down the lifting mechanism 100, and connect the first layer of rotating column with the first layer of beam and the second layer The beams are fixedly connected, so as to realize the connection of the upper and lower beams 1 .

S5. Repeat step S3 and step S4 until the rotating column 3 of each layer is fixedly connected with the beam 1; specifically, after the first layer of rotating column is fixed, the construction personnel start the lifting mechanism 100 again, and the first layer of beam The first layer of rotating columns will drive the second layer of beams to rise, and the second layer of rotating columns will slowly stand upright under the drive of the second layer of beams and the action of gravity until they are rotated to the assembled position; when the second layer rotates After the column rotates to the assembly position, the construction workers shut down the lifting mechanism 100, and fix the second-layer rotating column with the second-layer beam and the third-layer beam; after completing the fixed connection of the second-layer rotating column, the construction personnel will Start the lifting mechanism 100 to perform the fixed connection of the third layer of rotating columns, and repeat this until the rotating columns 3 of each layer are fixedly connected to the beams 1 .

Further, in step S4, the fixed connection of the rotating column 3 to the beam 1 includes: fixedly connecting the first end of the rotating column 3 to the upper beam 1; fixedly connecting the second end of the rotating column 3 to the lower beam 1 . In this embodiment, construction personnel fixedly connect the two ends of the rotating column 3 to the upper and lower beams 1 respectively, so that the rotating column 3 is connected to the upper and lower beams 1 to form a stable overall structure.

Specifically, the second end of the rotating column 3 is welded to the lower beam 1 . In this embodiment, the second end is welded to the beam 1 on the lower floor, no other structures need to be arranged in advance, and the maintenance is convenient and the connection is tight; in other embodiments, detachable connection methods such as bolt connection can also be used, as long as it can It only needs to ensure the stable connection between the rotating column 3 and the crossbeam 1, and the specific connection method is not limited here.

Further, as shown in Figure 3, after the rotating column 3 on each floor is fixedly connected to the beam 1, it also includes: driving the steel corridor to the connection position through the lifting mechanism 100, and connecting the steel corridor to the buildings on both sides . In this embodiment, the buildings on both sides are provided with connectors 300, and the construction workers start the lifting mechanism 100 to lift the assembled steel corridor to the connection position, and then connect the steel corridor with the connectors 300, so that the steel The corridor is firmly installed on the building.

Further, after connecting the steel corridor with the buildings on both sides, it also includes: dismantling the lifting mechanism 100 . In this embodiment, after the installation of the steel corridor is completed, construction personnel remove the lifting mechanism 100 to avoid damage to the top of the steel corridor by the lifting mechanism 100 .

Further, in step S3 , the lifting mechanism 100 drives the truss layer 2 up to a height not exceeding the length of the rotating column 3 . In this embodiment, when the lifting mechanism 100 drives the truss layer 2 to rise, the height of its lift does not exceed the length of the rotating column 3, so as to avoid the gap between the upper and lower beams 1 being too large and causing the first rotation of the rotating column 3. The two ends cannot be connected with the beam 1 of the lower floor.

Further, as shown in FIG. 1 , stacking the multi-layer beams 1 along the height direction of the steel corridor in step S1 includes: placing the lowest beam 1 on the tire frame 200; placing the remaining beams 1 along the steel corridor The height direction is stacked on the bottom beam 1. In this embodiment, the tire frame 200 is a low-height scaffold that plays a load-bearing role. There are multiple tire frames 200 placed on the work site. The tire frame 200 can adjust the height, and the bottom beam 1 can be placed on the tire frame 200 Leveling is carried out to ensure the stability of the subsequent installation.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. Various obvious changes, readjustments, and substitutions will occur to those skilled in the art without departing from the scope of the present invention. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. The steel corridor is characterized in that it includes: A crossbeam (1), the crossbeam (1) has multiple layers, and the multiple layers of the crossbeam (1) are stacked along the height direction of the steel corridor; A truss layer (2), the truss layer (2) is arranged on the uppermost beam (1), and the truss layer (2) is used to connect with the lifting mechanism (100); A rotating column (3), the rotating column (3) is arranged between the two adjacent beams (1), the rotating column (3) has a first end and a second end, and the first One end is rotatably arranged on the beam (1) on the upper floor, and the rotating column (3) can rotate between the stacking position and the assembled position on the beam (1); when the rotating column (3) ) is rotated to the stacking position, the length direction of the rotation column (3) is parallel to the length direction of the beam (1), and the rotation column (3) is pressed against the beam on the lower layer along the length direction (1), the upper beam (1) presses against the rotating column (3) along the length direction of the rotating column (3); the truss layer (2) can drive the upper beam (1) rise so that the rotating column (3) rotates to the assembled position under the action of gravity; when the rotating column (3) rotates to the assembled position, the rotating column (3) The length direction forms an included angle with the length direction of the beam (1), the first end can be fixedly connected to the beam (1) on the upper floor, and the second end can be connected to the beam (1) on the lower floor ) fixed connection. 2. The steel corridor according to claim 1, characterized in that, the bottom of the beam (1) is provided with a hinged support, and the first end is hingedly connected to the hinged support through a pin. 3. The steel corridor according to claim 2, characterized in that, the pin shaft is provided with threads, one end of the pin shaft is provided with a stop plate, and the pin shaft extends out of the hinged support. The other end fits with the nut thread. 4. A method for installing a steel corridor, using the steel corridor according to any one of claims 1-3, comprising the following steps: S1. Lay the multi-layer beams (1) along the height direction of the steel corridor, arrange the rotating column (3) between the beams (1) on two adjacent layers, and place the The first end of the rotating column (3) is rotationally connected with the beam (1) on the upper floor, so that the rotating column (3) is located at the stacked position; S2. Fixing the truss layer (2) to the uppermost beam (1) and connecting it to the lifting mechanism (100); S3. Drive the truss layer (2) up through the lifting mechanism (100), so that the beam (1) on the upper layer is away from the beam (1) on the lower layer until the beam (1) on the upper layer The rotating column (3) is rotated to the installation position; S4, fixedly connecting the rotating column (3) with the beam (1); S5. Steps S3 and S4 are repeated until the rotating columns (3) of each floor are fixedly connected with the beams (1). 5. The method for installing a steel corridor according to claim 4, characterized in that, in step S4, fixing the rotating column (3) to the beam (1) comprises: The first end of the rotating column (3) is fixedly connected to the beam (1) on the upper floor; The second end of the rotating column (3) is fixedly connected with the lower beam (1). 6. The method for installing a steel corridor according to claim 5, characterized in that, the second end of the rotating column (3) is welded to the lower beam (1). 7. The method for installing a steel corridor according to claim 4, characterized in that, after the rotating column (3) of each floor is fixedly connected to the crossbeam (1), it also includes: The lifting mechanism (100) drives the steel corridor to be lifted to a connection position, and connects the steel corridor to buildings on both sides. 8. The installation method of the steel corridor according to claim 7, characterized in that, after connecting the steel corridor with the buildings on both sides, it also includes: Remove the lifting mechanism (100). 9. The method for installing a steel corridor according to claim 4, characterized in that in step S3, the lifting mechanism (100) drives the truss layer (2) up to a height that does not exceed the height of the rotating column (3). length. 10. The method for installing a steel corridor according to claim 4, characterized in that, in step S1, stacking the multi-layer beams (1) along the height direction of the steel corridor comprises: placing the bottom crossbeam (1) on the tire frame (200); The rest of the crossbeams (1) are stacked on the bottommost crossbeam (1) along the height direction of the steel corridor.